A Blind Signature‐Aided Privacy‐Preserving Power Request Scheme for Smart Grid

Abstract

Smart grid is an emerging power system capable of providing appropriate electricity generation and distribution adjustments in the two-way communication mode. However, privacy preservation is a critical issue in the power request system since malicious adversaries could obtain users’ daily schedule through power transmission channel. Blind signature is an effective method of hiding users’ private information. In this paper, we propose an untraceable blind signature scheme under the reputable modification digital signature algorithm (MDSA). Moreover, we put forward an improved credential-based power request system architecture integrated with the proposed blind signature. In addition, we prove our blind signature’s blindness and unforgeability under the assumption of Elliptic Curve Discrete Logarithm Problem (ECDLP). Meanwhile, we analyze privacy preservation, unforgeability, untraceability, and verifiability of the proposed scheme. Computational cost analysis demonstrates that our scheme has better efficiency compared with other two blind signatures.

A Privacy-Aware Electricity Consumption Data Collection Model Based on Group Blind Signature

“…Zhao et al [16] proposed a smart and practical privacypreserving data aggregation scheme with smart pricing and packing method. Zhang et al [17] proposed a blind signature-aided privacy-preserving power request scheme for a smart grid. e scheme protects the user's daily schedule.…”